Digital modules
8.7 SM 326; F-DO 10 x DC 24V/2A PP (6ES7326-2BF10-0AB0)
Fail-safe signal modules
180 Installation and Operating Manual, 01/2010, A5E00085586-10
Technical data
Switching frequency
With resistive load
25 Hz symmetrical, maximum
with inductive load (see chapter "Switching
capacitive and inductive loads (Page 327)")
25 Hz symmetrical, maximum
With inductive load in accordance with IEC 60947-5-
1, DC 13
0,5 Hz symmetrical, maximum
With lamp load
10 Hz symmetrical, maximum
Internal limit of the inductive shutdown voltage type L+ (-33 V)
Short-circuit protection of output Yes, electronic
Response threshold
2.6 to 4.5 A
Response threshold of redundant interconnection
2.6 to 9 A
Actuator timing requirements Actuator must not respond if:
Dark period < 0.6 ms
Light period < 0,6 ms
(refer to chapter "Sensor and Actuator
Requirements for F-SMs in Safety Mode
(Page 47)")
Time, Frequency
Internal preparation time for
Safety mode
Max. 8 ms
Redundant safety mode
Max. 8 ms
Acknowledgment time
In safety mode
Max. 10 ms
Note
To reach the maximum cable length, it may be necessary to increase the settings for
maximum light test time or maximum read-back time dark test.
We also recommend a more detailed consideration of the boundary conditions, such as
EMC, cables used, cable guide, etc.
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